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Cast baseplate for a disk drive having an arcuate shroud wall and adjacent arcuate groove

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G11B-003/14
출원번호 US-0242096 (2008-09-30)
발명자 / 주소
  • Little, Aaron D.
출원인 / 주소
  • Western Digital Technologies, Inc.
인용정보 피인용 횟수 : 57  인용 특허 : 33

초록

A disk drive includes a cast baseplate, and a disk having a major surface and an outer circumference. The cast baseplate includes a casting inlet gate region, a planar area underlying the disk, an arcuate shroud wall that is substantially orthogonal to the planar area, and an arcuate groove immediat

대표청구항

I claim: 1. A disk drive comprising:a disk having a disk major surface and a disk outer circumference;a cast baseplate includinga casting inlet gate region;a planar area underlying the disk and separated from the disk major surface by less than 0.8 mm;an arcuate shroud wall that is substantially ort

이 특허에 인용된 특허 (33)

  1. Dushkes Sherman Z. (Redwood City CA), Air flow system in a data recording disk file.
  2. Bracken Allen T. (Boulder CO) Lunka Harold A. (Boulder CO) Benker William J. (Adams CO) Snyder Howard A. (Boulder CO) Collins Gary W. (Boulder CO), Air shroud for data storage disks.
  3. Voights,Ronald L.; Hong,Yiren, Air stream filtration system adjacent a rotational element of a data storage device.
  4. Severson, Gregg J., Airflow control device for a disc drive.
  5. Hong, Yiren; Lim, ChoonKiat; Xu, Mo; Wong, HonLeong; Jierapipatanakul, Niroot; Chee, Wai Onn; Teo, Joo Yong; Ong, BoonSeng, Disc drive housing with air guide.
  6. Rannow, Randy K; Wong, Walter, Disc drive impaction filter damping vibrations while trapping particulate contaminants.
  7. Harrison, Chad R.; Nelson, Eldon L.; Allsup, David S.; Nichols, Jackson W.; Ahmad, Mohammad N.; Krum, Richard G., Disc separator plate with air dam.
  8. Campbell Ian N. (Invergowrie GB6), Disk contour cover having air filtration section.
  9. Ou-Yang, Jin Hui; Wu, Hsueh-Chieh; Yang, Lin, Disk drive base design for modifying airflow generated from rotation of disk.
  10. Little, Aaron D., Disk drive including an airflow diverter element radially between spindle motor axis of rotation and cavity in shroud surface.
  11. Huang, Herb H.; Blumentritt, Bruce F., Disk drive system with enclosed removable cartridge including voice coil/head/disk assembly.
  12. Lin, Jen-Tai; Wong, Jacky S., Disk drive with air channel.
  13. Lin,Jen Tai; Ou Yang,Jin Hui; Ku,Chiao Ping; McNab,Robert J.; Chen,Shuo Hao; Yang,Lin, Disk drive with airflow channeling enclosure.
  14. Boutaghou Zine-Eddine (Owatonna MN), Elastic insert shroud to provide maximum effective shrouding shock mitigation and filtering in high speed disk drives.
  15. Houk,Galen D., Enhancements for adhesive attachment of piezoelectric motor elements to a disk drive suspension.
  16. Tsang,Alan H; Cain,Rollo R; Kaneko,James E; Tuma,Daniel L., Filter assembly for a data storage device.
  17. Beecroft Harold (Colorado Springs CO), Filter system for type II HDD.
  18. Bae, Byoung-young; Hong, Soon-kyo; Kim, Seong-hoon; Lee, Sung-jin, Filtering apparatus for hard disk drive.
  19. Hong,Yiren; Lim,ChoonKiat; Smith,James H.; Wong,Walter, Flow divider upstream of disc drive recirculation filter.
  20. Lee, Hong-kwon, Hard disk drive having air pumping groove.
  21. Fukaya,Masashi; Hirono,Yoshiyuki; Ikegawa,Masato; Mukai,Hiroshi, Magnetic disk apparatus with reduced disk fluttering by placing a groove in the peripheral wall of the housing.
  22. Hayato Shimizu JP; Masao Iwakura JP; Shigeo Nakamura JP; Kazuo Sakai JP; Shigenori Togashi JP; Masayuki Kaiho JP; Toshiaki Kobari JP, Magnetic disk apparatus with shroud having opening downstream of moveable arm.
  23. Imai, Satomitsu; Kouno, Takashi; Goto, Marutomo; Nakamura, Shigeo; Sega, Masahiko, Magnetic disk device.
  24. Tokuyama, Mikio; Shimizu, Hayato; Imai, Satomitsu; Saegusa, Shozo; Sega, Masahiko; Okazaki, Toshihisa; Yamaguchi, Yuzo; Iwakura, Masao; Nakamura, Shigeo; Sakai, Kazuo; Togashi, Shigenori; Kaiho, Masa, Magnetic-disc unit with gap between disc and shroud.
  25. Wang, Peter Fei; LeClair, Stephen Peter, Multiple shroud bypass for bulk windage reduction.
  26. Adams, Carl F.; Nichols, Jackson W.; Welscher, Cory B., Plenum assembly which filters multiple fluidic current channels using a single recirculation filter.
  27. Huang Benjamin (Palo Alto CA) Ramsdell Richard G. (Saratoga CA), Power reduction shroud for a hard disk drive.
  28. Adams,Carl Fred, Recirculating filter for a data storage device.
  29. Boutaghou Zine-Eddine, Sensitive sensor internally mounted shock for a disk drive.
  30. Smith, Gordon James, Shroud for disk drive with particulate filter elements.
  31. Pierson, Mark V., System and method for capturing contaminants within a disk drive.
  32. Elsing John W. (Edina MN), Thermally stabilized enclosure for magnetic disk.
  33. Quinn, David E.; Burdick, Kenneth J.; Stone, Ray D.; Lane, John; Cuipylo, William N., Thermometry probe calibration method.

이 특허를 인용한 특허 (57)

  1. Nguyen, Daniel T.; Sill, Kevin R., Actuator pivot assembly including a bonding adhesive barrier configured to reduce contamination.
  2. Chen, Yih-Jen D.; McNab, Robert J., Apparatus for manufacturing piezoelectric actuators.
  3. Nguyen, Daniel T.; Watson, Scott E.; Liem, Andre Y.; Garbarino, Jonathan M.; Weiher, Joshua P., Coined VCM tab to limit cover deflection under pinch load.
  4. Chan, Andre S.; Fu, Ta-Chang; Shindo, Hitoshi; Deguchi, Takaaki; Kung, May Ching; Kim, Myeong Eop, Data storage device baseplate diverter and downstream spoiler.
  5. Tian, Jifang; Li, Hongqi; Flynn, William; Hu, Xiaoping; Obregon, Francisco, Devices and methods for system-level disk drive vibration and shock testing.
  6. Heo, Baekho; Mylabathula, Enoch; Schott, Brian P.; Berding, Keith R.; Garbarino, Jonathan M., Disk deflection damper for disk drive.
  7. Lee, Yu-Min; Zheng, Hao; Griggs, Ian; Tran, Gregory, Disk drive actuator having a radially stepped pivot bore.
  8. Tashiro, Tomoyuki; Hirata, Yoshio; Iwai, Hiroshi, Disk drive device rotationally driving recording disk.
  9. Mani Biswas, Mousumi, Disk drive filter including fluorinated and non-fluorinated nanopourous organic framework materials.
  10. Gustafson, John R.; Patel, Mukesh, Disk drive having a conformal peripheral foil seal having an opening covered by a central metal cap.
  11. Heo, Baekho; Mylabathula, Enoch; Tian, Jifang; Brunnett, Donald, Disk drive having a disk limiter that is disposed within an angular range relative to a base depression brim.
  12. Heo, Baekho; Mylabathula, Enoch, Disk drive having a head loading ramp and a disk limiter tab that projects from a side of an actuator arm.
  13. Horasart, Theerapong; Bupphasawan, Meatasit; Chaiboon, Chinorot, Disk drive having a stationary plate between disks with grooves adjacent fastener holes.
  14. Smyth, Nicholas D.; Myers, David K., Disk drive having a top cover channel vented to a central cavity via a hole through a bottom land.
  15. Smyth, Nicholas D.; Myers, David K., Disk drive having a top cover channel vented to a central cavity via a peripheral clearance gap.
  16. Pan, Tzong-Shii; Chen, Yih-Jen Dennis; Shum, Wing Chun, Disk drive head gimbal assembly having a flexure tail with a dielectric layer that has regions of lesser thickness.
  17. Pan, Tzong-Shii; Zhang, Cliff, Disk drive head stack assembly having a flexible printed circuit with bond pads having reduced capacitance.
  18. Chen, Yih-Jen Dennis; Liu, Yanning; Teo, Kia Moh, Disk drive head suspension tail with a noble metal layer disposed on a plurality of structural backing islands.
  19. Chen, Yih-Jen Dennis; Liu, Yanning; Teo, Kia Moh, Disk drive head suspension tail with a noble metal layer disposed on a plurality of structural backing islands.
  20. Chen, Yih-Jen Dennis; Liu, Yanning; Teo, Kia Moh, Disk drive head suspension tail with ground pad outside of bonding region.
  21. Chen, Yih-Jen D.; Pan, Tzong-Shii, Disk drive head suspension tail with stiffened edge alignment features.
  22. Chen, Yih-Jen D.; Pan, Tzong-Shii, Disk drive head suspension tail with stiffened edge alignment features.
  23. Chen, Yih-Jen Dennis; Pan, Tzong-Shii, Disk drive head suspension with a dual dimple and a flexure tongue with a piezoelectric microactuator.
  24. Kloeppel, Klaus; Ilagan, Ronald G.; Nguyen, Diep L., Disk drive spindle with fluid journal bearing having increased radial clearance in axial end regions.
  25. Pan, Tzong-Shii, Disk drive system.
  26. Parker, Joshua; Petersen, Frederic C.; Couture, Shawn P.; Kuniyil, Prabheesh Balakrishnan; Nykanen, Bob A., Disk drive tolerance ring with edge rounding from opposite major faces.
  27. Sill, Kevin R.; Little, Aaron D., Disk drive with self sealing screw attachment of actuator pivot.
  28. Gustafson, John R.; Patel, Mukesh, Disk drive with slow acting desiccant.
  29. Heo, Baekho; Myers, David K., Disk limiter for disk drive.
  30. Quines, Raymond; Heo, Baekho; Mylabathula, Enoch, Drive with circumferential disk limiter.
  31. Kloeppel, Klaus, Grooved cylindrical seal with increased radial clearance for reduced cost disk drive spindle.
  32. Le, Lynn Bich-Quy; Hitchner, Thomas J., Hard disk drive enclosure base with a helium sealed gasket.
  33. Le, Lynn Bich-Quy; Hitchner, Thomas J., Hard disk drive enclosure base with feed through flexure design and accompanying flexure.
  34. Shum, Wing Chun; Liu, Yanning; Scura, John E., Head gimbal assembly having a flexure tail with cover layer standoff islands.
  35. Pan, Tzong-Shii; Ho, Shufun, Head stack assembly with a flexible printed circuit having a mouth centered between arms.
  36. Pan, Tzong-Shii, Head suspension having a flexure tail with a covered conductive layer and structural layer bond pads.
  37. Casey, Shawn E.; Tian, Jifang; Campbell, Tegan; Li, Hongqi; Flynn, William, Information storage device with a damping insert sheet between a housing bay and a disk drive.
  38. Hanke, Frederick J., Information-storage device including an oxygen absorbing device.
  39. Davidson, Marc; Myers, David K.; Willis, Terrance J., Magnetic head separator connected to a ramp.
  40. Davidson, Marc; Myers, David K.; Willis, Terrance J., Magnetic head separator fin material to prevent particulate contamination on slider.
  41. Novotny, Vlad; Berding, Keith R., Magnetic recording drives with active photocatalytic filtration.
  42. Nguyen, Diep L.; Tian, Jifang; Li, Hongqi, Method for fabricating a disk drive base for a disk drive.
  43. Perlas, Joseph A.; Vangal-Ramamurthy, Jambunathan, Method of imbalance correction using a grooved disk clamp.
  44. Pan, Tzong-Shii; Magsombol, Fernando A., Method of manufacturing a disk drive head gimbal assembly having a flexure tail with folded bond pads.
  45. Nguyen, Diep L.; Ilagan, Ronald G.; Kloeppel, Klaus, Rotary spindle having a disk clamp bottom land facing and in contact with a shaft top land.
  46. Watson, Scott E.; Lee, Yau-Shing; Hitchner, Thomas J.; Myers, David K., Slim form factor disk drive comprising disk drive enclosure having an insular raised region.
  47. Davidson, Marc; Krishnan, Varuvadivelan; Tan, Siu Ken; Kok, Kin Lim, Sloping transition on a ramp of a hard disk drive.
  48. Dougherty, Mitchell D., Spindle motor magnet diameter increase above head plane.
  49. Smyth, Nicholas D.; Nguyen, Daniel T.; Myers, David K., Storage device with a cover supporting portion.
  50. Smyth, Nicholas D.; Nguyen, Daniel T.; Myers, David K., Storage device with a cover supporting portion.
  51. Liu, Yanning; Shum, Wing C.; Scura, John E., Suspension assembly having a microactuator electrically connected to a gold coating on a stainless steel surface.
  52. Liu, Yanning; Shum, Wing Chun; Scura, John E., Suspension assembly having a microactuator electrically connected to a gold coating on a stainless steel surface.
  53. Seymour, Mark S.; Dougherty, Mitchell D.; Banshak, Jr., Walter G.; Hales, Geoffrey A., Suspension clamp for clamping a disk drive suspension to an actuator arm.
  54. Tafreshi, Shahriar A.; Lee, Yu-Min, Tamper-evident seals having adhesive-free areas to minimize rework time.
  55. Heo, Baekho; Weiher, Joshua P., Threaded disk clamping element with step on disk contact surface.
  56. Lim, Hong-taek; Song, Yong-han; Kim, Sung-wook, Two-step recess base.
  57. Tian, Jifang; Yang, Jian; Yang, Qiang, Ultra-thin HDD embedded disk clamp design.
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